Showing structure for C=CC1=C2C=C3C(C)=C(C)C4=[N+]3[Fe]35N2C(=C1C)C=C1C(C)=C(CCC(=O)O[Si](C)(C)C)C(=[N+]13)C=C1C(CCC(=O)O)=C(C)C(=C4)N15